@snowleopard None. The wallabies next to them have a space 1/3 this size. There's the outdoor run thing I included a photo of, but none were in it and it was a hot July day, perfect for them to be outside. It's literally a rectangle of grass, nothing in it, but that's better than this for them.
I have no idea how these roadside zoos manage to legally display animals in such tiny spaces. There must be some kind of antiquated legislation that bars facilities from doing so, but perhaps there is nobody around to enforce the necessary changes. It's perplexing and infuriating at the same time.